Key procurement takeaways
- Provide a circuit schedule or outgoing-way requirement.
- State the incomer, rated current and project fault level.
- Identify metering, surge protection and spare-capacity needs.
- Request drawings and a model-level compliance schedule.
Board rating and supply arrangement
Start with the system voltage, phases, neutral arrangement and rated current. The board rating must align with the incomer, busbar system and project design rather than being selected from enclosure size alone.
Ways, spare capacity and device schedule
List the required outgoing circuits and decide how much spare capacity the project should retain. If the board is to be populated, supply the device ratings and protection types for each way.
Project options
- Main switch, MCCB or other incomer arrangement
- Surge protection and backup protection
- Metering or monitoring provision
- Cable entry, gland plates and labelling
- Surface mounting, dimensions and access clearances
Documentation package
- General arrangement and dimensional drawing
- Circuit schedule and device list
- Applicable standards and declaration scope
- Installation instructions and terminal information
- Inspection and project packing records where agreed
Engineering note
Final product selection must be checked against the project design, destination-market requirements and the approved manufacturer documentation for the exact model.
